seine



(No Model.)

A. DE DION. G. BOUTON & 0. TREPARDOUX. FEEDING WATER T0 BOILERS.

No. 329,722. Patented Nov. 3, 1885.

Zia/6225000. fg I ALgEWU Jafi amxm N. PEI'ERS. Mouthomphtr. Wahinlton, n. t;

ll Nrren TATES ATENT FFIQEO ALBERT nn DION, GEORGES BOUTON, AND'OHARLES TREPARDOUX, or LUTEAUX, SEINE, FRANCE.

FEEDING WATER TO BOILERS.

EPECIPICATION forming part of I letters Patent No. 329,722, dated November 3, 1885.

Application filed August 6, 1884. Serial No. 139,735. (No model.) Patented in France May 5, 1884, No. 161,912; in Belgium July 18, 1 884, No. 65,806; in Germany July 2'2, 1884, No. 30,059,- in England July 23,1884, No. 10,492 in Italy September 30, 1884, No. 17,204; in AnstriaHungary October 5, 188-1, No, 24.075 and No. 45,104, and in Spain November 15, 1884, No. 6,431.

' GEORGES BOUTON, and OH tRLEs TREPAR- DOUX, citizens of the Republic of France, and residing at Luteaux, (Seine,) France, have invented certain new and useful Improvements .the attendant to allow the steam to be received at will from the proper point in the boiler G.- Its action is controlled by suitable in Apparatus for Feeding Water to Steam- Boilers, of which the following is a full and exact description.

We have devised a system of apparatus which works automatically by the pressure of the steam in the boiler forcing in a sufficient quantity of water proportional tothe consumption of steam, so that the water-level in the boiler shall be maintained substantially constant.

The steam by which the apparatus is operated is taken from the boiler at a point corresponding to the water-level which it is desired to maintain.

The apparatus is simple, and allows the attaining of the desired end without the necessity of employing any special mechanism for regulating the feed.

The following is a description of what we consider the best means of carrying out the invention: We employ a piston operating in a suitable cylinder by the force of the steam, with suitable connections to a pump. The pump is immersed in a tank of feed-water. The exhaust-steam from the cylinder is discharged into said tank, imparting heat to the water. When by reason of the pump having forced in a sufficient quantity of water the water-level rises, a large quantity of water, instead of pure steam, will be received into the cylinder, and the action of the apparatus will be retarded to allow the water to flow through the contracted passages. The apparatus will maintain a slow action under these conditions until the sinking of the water-level in the boiler again allows pure steam to be received, when the apparatus will again resume its more rapid movements.

The accompanying drawing forms a part of this specification, and is a side elevation of the apparatus, with a vertical section of a portion of the boiler which it is feeding.

Referring to the drawing and the letters of packed piston. I the plunger of the pump A.

reference marked thereon, A is a feed-pump of the ordinary plunger style, and B is a cylinder containing a close-fitting and properly- The piston-rod b constitutes G is a stop-valve, which may be adjusted by valves operated by a valve-stem, B, with suitable connections (not shown) from the piston-rod b. It actuates the piston in the cylinder B, and consequently the pump-plunger b reciprocates rapidly and efficiently so long as dry steam is received through the valve 0; but whenever the water-level M N rises so that water instead of steam is received through the valve 0, the water, being more sluggish in its motions, actuates the piston, and consequently the piston rod or plunger I), slowly;

.but its motion will continue, the cylinder B taking water instead of steam from the boiler and delivering it slowly through the contracted exhaust-pipe E into the tank D. The water is pumped very slowly into the boiler. The tank D should be of sufiicient sizeto retain the moderate quantity of water which will be passed into it through the cylinder B when the water-level is momentarily too high.

Under ordinary conditions the apparatus will work with its action just sufiiciently choked by the presence of water in the steam to slow the action to the proper extent. It will maintain an almost absolutely uniform level of the water in the boiler, pumping always sufticiently fast to maintain a low-Water level in the tank D, and requiring additional water from some source, either constantly or at short intervals, to supply the loss due to the abstraction of steam from the boiler through other sources than the valves 0. Such water may be supplied through a cock actuated automatically by a float, J, resting on the surface of the water in D, and supplying additional water thereto from an elevated reservoir or other suitable source. In the drawings, J represents such float; J, the cock controlled thereby, and i a pipe leading from an elevated reservoir, I. It will be seen that whenever the the water in the boiler is in excess, but so soonas the water-level M N has again sunk the apparatus will again commence to work rapidly,

and the water will be properly supplied by the pump from the tank D into the boiler G, as at first. The exhaust-steam from the cylinder B,

as also the hot water delivered therefrom under some conditions, insures that the feedwater in the tank D shall be at a high temperature. The fact that the feed-pump is below the water-level in the tank D and is immersed in the water of the tank with a liberal communication between between the two, insures that the water is easily and promptly received by the pump. It is practicable by this arrangement to pump the water at a temperature quite up to the boiling-point. Our apparatus is certain to work slowly so soon as the water-level M N in the boiler rises, and is certain to again work rapidly so soon as the-water-level sinks. I I Our apparatus may be applied in a great variety of conditions. boilers of all kinds.

Witnes ses: It may serve with Instead of supplying the tank D from an elevated reser voir, I, we may supply it from a street-main.

Our apparatus may be mounted at ahigher level or a lower without materially interfering with its success. It may be placed at any required distance from .the boiler.

Our apparatus does not require especially nice adjustment. It may be an advantage under some conditions that the pump A shall be so packed and adjusted that it may leak sufficiently to prevent its pumping at all during the periods while the apparatus works slowly in consequence 'of the water level being already sufficiently high.

-We claim as our invention- Ina feed-water apparatus for steam boilers, the combination',with the boiler, of a tank, as D, having the exhaust projected beneath the surface of the water therein, and having means, as J, for maintaining said water at a proper level, and a pump, as A, submerged in the tank, as set forth.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses. v

ALBERT DE DION. GEORGES BOUTON.

v Row, M; ome,

" "OK'OREMERs.

H S 17.3113.PARDOUX7 

